We obtained a cest-2.2p::GFP extrachromosomal array by microinjection and, consistent with previous evidence (Le et al, 2020), observed high GFP expression levels primarily in the intestine.
The C+C enhancer (pOK17.21) activates frequent expression in all pharyngeal muscles. the C+C enhancer also activates expression in non-muscle cells in the pharynx. Expression induced by the C+C enhancer was observed in all pharyngeal cell types including gland cells, neurons and marginal cells as well as muscles. These results define C as an organ-specific subelement.